1803 in architecture

	… 1793; 1794; 1795; 1796; 1797; 1798; 1799; ; 1800; 1801; 1802; 1803; 1804; 1805; 1806; ; 1807; 1808; 1809; 1810; 1811; 1812; 1813 …;
	Buildings and structures Art; Archaeology; Architecture; Literature; Music; Philosophy; Science; +...

The year 1803 in architecture involved some significant architectural events and new buildings.